2 Atlas 12's

Hey, I have 2 atlas 12s, right now they are currently in a crappy temporary prefab box which gives them 1 cube each sealed.

I got the Qts Setting on high i believe (left the gold terminals open).

It sounds good to me, and is almost loud enough.

i have just above 3 cubes gross to give both my 12's and was wondering if its enough to have them ported, or should i just stick to sealed and make a cool looking box? And also, which Qts setting should i use?

I listen to mostly rap, but i do listen to rock pop dance and all sorts of music once in a while.